package hello;

import java.io.IOException;

public class Test {
	/*public static void main(String[] args) throws IOException{
		System.out.println("请输入一个大写字母：");
		char ch=(char)System.in.read();
		ch-=32;
		System.out.println(ch);*/
	public static void main(String[] args) throws IOException {
		System.out.println("请输入一个小写字母：");
		char ch=(char)System.in.read();
		ch-=32;
		System.out.println(ch);
	
	
	}
}

